Attachment for corn-planters



(No Model.) 2 Sheets-Sheet 1.

M. A. GRINER. ATTACHMENT FOR CORN PLANTERS.

No. 372,671. Patented Nov. 8, 1887.

(No Model.)

2 Sheets-Sheet 2.

M. A. GRINER.

ATTACHMENT FOR CORN PLANTERS.

Patnted Nov. 8, 1887.

x In Lnhogvaphar. Washir'xgwn. ac.

ihvirnn STATES PATENT ()rrrcn.

MIOHEAL A. GRINER, OF TALLYRAND, IOWA.

ATTACHMENT FOR CORN-PLANTERS.

$PIECIFICATION forming part of Letters Patent No. 372,671, dated November 8, 1837.

(No model.)

To all whom it may concern:

Be it known that I, hIICHEAL A. GRINER, of Tallyrand, in the county of Keokuk and State of Iowa, have invented a certain new and useful Improvement in Attachments for Corn- Planters; and I do hereby declare the follow ing to bea full, clear, and exact description of the invention, such as will enable others skilled in the art to which it appertains to make and use the same.

My invention relates to an improvement in check-rowers for corn-planters.

The object is to provide a simple, effective, and inexpensive attachment which may be applied to any of the corn-planters in common use with but slight change in their working mechanism.

\Vith these ends in view my invention consists in certain features of construction and combinations of parts, as will be hereinafter fully described, and pointed out in the claims.

In the accompanying drawings, Figure 1 is a bottom plan view of my improved checkrower attachment. Fig. 2 is a vertical section on line a: a: of Fig. 1. Fig. 3 is an end elevation.

A represents the main support of the frame, having rigidly secured to its ends at right angles the end bars, B B, which are suitably braced in position by the rods to. Located on the main support A are the brackets I), as a means whereby the attachment is secured to a planter. Forwardly-projeeting arms 0 0, parallel with each other and somewhat separated, are affixed to the main support A of the frame near its center, and journaled in bearings c in their outer ends is a rotary shaft, D, on which is affixed, in position be tween the arms 0 O, a wheel or hub, E. This wheel or hub E is provided on both ends with lateral flanges cl d, to which are secured, respectively, cam-blocks e e, alternating with each other, so as to form between them and the flanges a serpentine groove,

f. An upright, F, projects vertically from the groovef, the lever being operated by the cams forming the groove. The upper or free end of the lever G is provided with several perforations, g, and loosely secured in one of said perforations at'a time is a link or arm, H, which connects either directly or indirectly with the seed-slide (not shown) of the grainhopper. By placing the arm or link I-Iin the lower of the perforations the extent of opening of the ports is lessened, and by placing it in the upper of the perforations the openings of the ports are increased. The shaft D is further supported in boxes h on the endbars, B B, and rigidly secured on each end of the shaft D, outside of the end bars, B B, are ratchet wheels K, said wheels having four teeth, or a number of teeth, to correspond with the cam-blocks on the wheel or hub E.

Latches L are loosely mounted on the ends of the shaft D, so as to straddle the ratchetwheels K. In the slotted end of the latches pawls Z are pivoted, so as to normally engage with the teeth of the ratchet-wheels. These latches L are provided with outwardly-extending forks m at their lower end, and a spiral spring, a, normally holds the latches forward, while gravity-pawls T normally engage the teeth of the ratchet-wheels, preventing a retrograde movement of the shaft.

Brackets M project laterally from the rear end of the end bars, B B, and consist, essentially, of parallel plates m of, each of which has a rearwardly-projected lower end or horn, m. The construction of these plates is such that plate m" is considerably broader and extends considerably lower than plate W. A pulley, a, is loosely mounted on a short shaft, n affixed in the lower end of plate m, and a second pulley, 0, somewhat wider than pulley n, is located slightly above and forward of the latter and journaled in the plates. Both pulleys have a grooved periphery and a space remaining between the end of plate at and pulley a for the passage of the tappetwire when removing it from the planter or attaching it thereto.

Arms 0 project laterally from the forward ends of bars B B, and extending from their outer ends are pulleys 12, also having grooved peripheries. Guide-pulleys P, extending from brackets 19 hold the tappet-wire in contact ICO with these pulleys p. These pulleys all serve as guides for the tappets Q. on the tappet-wire R, which, by passing between the pulleys and engaging the latches with the tappets, operates the discharge of grain at intervals from the hoppers.

It is evident that slight changes might be resorted toin the form and arrangement of the several parts described without departing from set being mounted between a pair of parallel outwardly-turned plates, one of said plat-es terminating in a born a shortdistance from the axis of the outer pulley.

2. In a check-rower for corn-planters, the combination,with asupporting-frame,ofguidepulleys,one set of which are mounted in brackets, consisting, essentially, of a pair'of parallel outwardly-turned plates, the pulleys being mounted between these plates, and one plate terminating in a horn a short distance from the axis of the outer pulley, and the other set on a depending bracket, one pulley mounted vertically thereon and the other horizontally, substantially as set forth.

In testimony whereofl have signed thisspecification in the presence of two subscribing witncsses.

M IOHEAL A. GRINER.

Witnesses:

MEIKED HEISDORFFER, A. W. GRAY. 

